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Tap to open full zoomPatek Philippe Aquanaut Steel Blue Dial 40.8mm
List price struck through — this holding, at this figure, while it lasts. Checkout locks the price you see.
Insured worldwide delivery included · pay by crypto at checkout
The movement inside This reference is built with either calibre. The choice changes the price, the rate and the reserve — nothing else about the watch.
| Base | Seiko NH35 or Miyota 8215, automatic | Swiss clone of the maison's own calibre |
|---|---|---|
| Rate | ±15 to 25 seconds a day | ±5 to 10 seconds a day |
| Reserve | About 40 hours | 55 to 70 hours |
| Balance | 21,600 A/h · six beats a second | 28,800 A/h · eight beats a second |
| Servicing | Any watchmaker can service it; parts are everywhere | Serviced by a specialist; finished as the original is |
| Suited to | Wearing daily, keeping simply, spending less | Matching the reference exactly, and glass casebacks |
The Swiss movement is $50 more. That figure buys the rate, the reserve and a movement that reads correctly through a glass back — not a different watch.
Which we would take. If it is to be worn every day and serviced down the road from you, the Japanese is the honest answer. If it has to survive a loupe against the reference — or the caseback is glass and the movement is meant to be seen — take the Swiss.
The exact base calibre for this reference is confirmed in writing, with the QC film, before anything is dispatched. The two movements, explained
- Ships from the USA
- QC film before ship
- 2-year warranty · insured express
Add to cart, enter your ship-to details, then pay with crypto — or message the desk (replies typically within a few hours, Pacific business hours). QC film usually same day after payment clears — reply GL to ship or RL for another. Japanese +$50 · Swiss +$100.
Before you decide: how we inspect · Swiss or Japanese · what 1:1 means · FAQ
Specifications
| Maison | Patek Philippe |
| Case size | 40.8 MM |
| Dial | Blue |
| Grade | Standard |
| Warranty | Two years, mechanical defects |
| Dispatch | 1–2 business days after QC approval |
Any term in this table can be looked up — beat rate, lug-to-lug, amplitude, power reserve — in the glossary.
What you see on the QC film
Macro stills and short film of your exact watch — dial print and lume, case flanks, bezel action, clasp stampings, crown threads, and the movement running. Nothing ships until you reply GL. RL means we swap or adjust first. See how ordering works.
Shipping & delivery
After GL: 1–2 business days to prep, then insured express (DHL, UPS or EMS) another 5–10. Tracking is e-mailed the moment the piece leaves. Packaging is double-boxed and discreet.
Warranty & returns
Two-year warranty against mechanical defects. Unworn pieces may be returned within 14 days or exchanged within 30, protective seals intact. Full terms.
The reference in figures
Case
40.8 mm
Dial
Blue
Movement
Japanese or Swiss
Every figure here is from this reference's own record, and the base calibre is confirmed in writing with your QC film before dispatch.
In our words
Every choice is a pioneering act of courage. ZF has successfully recreated the modern and international dual time zone complications of the Patek Philippe Aquanaut collection 5164A-001 watch, better meeting the tastes and needs of the younger generation. [Case] The 40.8mm case diameter is crafted from Patek Philippe's classic stainless steel. The rounded octagonal case shape is just right. The shark fin design on the left side of the case is a button for quick adjustment of the central skeleton hour hand, which can be used to indicate the second time zone. [Dial] The black embossed dial features three-dimensional metal numerals and luminescent hour markers. Square day/night windows at 3 and 9 o'clock display "HOME" and "LOCAL" respectively, with blue and white representing night and day. A pointer-style date dial is located at 6 o'clock. [Movement] Successfully implemented the 324 SC FUS automatic winding movement functions found in the Patek Philippe 5164A-001, featuring a dual time zone module on a basic three-hand movement base. Equipped with a casual Tropical strap, it's a luxurious sports watch designed for the younger generation. Produced by ZF, a fine piece.
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